Attachment for weighing-scales.



No. 820,947. PATENTED MAY 22, 1906. J. BARRY & M. L. SHAUGHNESSY.

ATTACHMENT FOR WEIGHING SCALES.

APPLICATION FILED JUNE 28,1905.

3 L sa UNITED STATES PATENT OFFICE.

JOHN BARRY AND MIGHEA'L.L. SHAUGHNESSY, OFWESTPHALIA, KANSAS, ASSIGNORS OF QNE-HALFTO L. J. BARRETT AND C. M. ELMORE, OF

HOISINGTON, KANSAS.

ATTACH NI E'NT? FO R WE! GHI NGa-SGAL ES:-

Specificationof Letters Patent:

Patented May;22,- 1906.

Application filed June 28, 1905; Serial No. 267,470.

To all whom it'may concern.-

Be it known that we, JoHN BARRY an r Our invention relates to attachments for.

weighing-scales, and'more especially to at tachments for even-balance scales which will indicate to the operatorat a glance how much in ounces and fractions thereof the weight of the commodity exceeds or falls short of'the proper weight; and our object is to produce an attachment of this character which operates efficiently and'reliably and can be manufactured and'appliedto any of the approved types of scales-of the evenbalance type now on the market.

With this object in view the invention consists in certain novel andJpeculiarfeatures of'construction and organization, as hereinafter described and claimed, and in order that it may be fully understood'reference is to be had to the accompanying drawings, in which Figure 1 represents a back view of an even balance scale equipped with our attachment. Fig. 2 is a detail front view of the attachment with its front plate broken away to expose parts otherwise hidden. view of the attachment disposed as shown in Fig. 1, said figure also showing part of the contiguous pan of the scale.

In the said drawings, l'indicates the base; 2, the frame rising therefrom; 3, the balanceframe pivotally supported within frame 2; 4:, frames pivotally pendent from the ends ofthe balance-frame, and 5the pans movable vertically with said frames. As represented by the drawing, Fig. 1, the pan on the left hand is the weight pan or rest and the one to the right the commodity-pan. The scale is equipped with a scale-beam (not shown) carried by frame 3 'at'its front'side or the side adjacent to the clerk behind the counter, and adjustable on this scale-beam is a poise 6. Any other type of even-balance scale may be employed in'lieu of that described.

7 indicates an angle-arm provided with a Fig. 3 is a top plan horizontal'slot' 8, and in a lower-plane the outer endofthe arm is bentback upon itself to formthe vertical sleeve 9, a screw 10 extending through the body ofthe arm and its end'for the purpose of drawing them closer together, so as to constitute a clamp.

11 indicates a standarddepending from' an angle-bracket 12, and' 13 indicates aplate secured to said angle-bracket andhaving its upper and lower margins curvedby preference, the upper endof the plate being bent upward and rearward by preference and bearing atits front. side: indicia to represent ounces or fractions thereof, the central mark representing theneutralor 0" point. When viewing the scale from inside the counter, the numbers or figures from 0 to 3 to the right indicate underweight and from .0 to 3 to the left'indicate overweightf as in Fig. 2; itbeingunderstood that "the upper portion of the plate-13, hereinafter termed the scale-plate, is pitched at arr-angle, as described, inorder that the;

salesmanmay more easily read it.

14 indicates screws disposed in the 'same horizontal plate at opposite sides of" and equal distancesfrom the center-ofplate 13, and-15 is a plate engaged and clamped by said screws against the sleeves 16', mounted on screws 14 between-the scale-plate and plate 1 5'.

17 indicates an arbor j ournaled at'its ends in plates 13and 15 and disposed-centrally thereof and axially of the indicia' of" the scale-plate, and'securedrigidly on said arbor is an index-fingerv 18, having a longitudinal slot 19 in its lowerendi A- slidingweight 20 engages finger 18 and is held thereon-by a clampingscrew 21, extendingthrough said slot; Because of this construction weight 20 can be adj usted upward ordownward to decrease or increase its leverage, so that it shall instantly respond-"to movement of'the p artofthe scale-adapted'to operate it, ,ashereinafter explained.

22 is a pin pro]ecting from the index-fingeratone side ofits arbor 17 and-pivotally con nected by a depending link 23 and an upwardlyprojecting link 24- to the inner ends of a pair oflevers 25 and'26', respectively, said levers being SBCUJGd OII'PIIIS 27' and28, respectively, journaled in the scale late and plate 15. The outerendsof sald evers are enlarged or headed to receive the set-screws 29, lock-nuts 3O engaging the screws and said levers to lockjthe former at the desired points of adjustment.

To assemble the attachment in proper relation with the scale, the angle-arm 7 is arranged with its slotted portion against frame 2 and is secured therein at the desired point of adjustment by clamping-screws 31. The standard 1 1 is then fitted in sleeve 9 until the levers are approximately at equal distances from the plane of theweight-pan, the clamping-screw 10 being then manipulated to clamp the standard in such relation. The setscrews 29, one of which stands above and the other below the outer portion of the weightpan, and therefore in the path of its movement, are adjusted so that they shall be equal distances from the pan when balanced and are locked in such relation by the lock-nuts.

When the weights are placed upon the weight-pan, and thereby cause it to move downward, it imposes downward pressure on the underlying set-screw and swings the index-finger to the right of the operator until its movement is arrested by contact with the right-hand stop 32, projecting forwardly from the scale-plate, said stop being preferably a portion of said plate bent forwardly. The commodity is now placed upon the com modity-pan, and when its weight is within three ounces of the weight on the weight-pan the latter has been moved upward a sufficient distance to permit the index-finger to register with the 3 mark at its righthand side, so that it shall indicate that the commodity is only three ounces underweight and the operator will know approximately how much of the commodity should go on the scale to bring it to a balance, it being understood that as the weight-pan continues to rise it is followed upward by the underlying set-screw, the movement of the set-screw being induced, of course, by the weighted index-finger. l/Vhen the scale is brought to approximately an exact balance, the index-finger registers with the O or neutral mark. When the weight of the commodity exceeds that on the weightpan, the latter will rise and impose upward pressure on the upper set-screw 29, and thereby cause the index-finger to swing to the left so as to register in ounces or fractions thereof the excess weight of the commodity, this movement being limited by the left-hand stop 32. The operator then removes a part of the commodity, so as to bring the scale to balance, this being indicated by the swinging of the index-finger back to neutral or 0 point.

Itis obvious, of course, that the attachment can be rendered more or less sensitive to;.the movement of the balance-frame by raising or lowering the slide on the index-finger, as hereinbefore referred to, the elevation of the slide increasing and its depression decreasing the leverage of the scale-beam on the index-finger. The attachment by the adjustment on the slotted arm 7 of the bolts 31 and the vertical adjustment of the:standard 1 1 in sleeve 9 can be attached to scales of varying proportions.

It will be understood, of course, that it is immaterial on what part of the scale-frame said slotted arm is securediandlfthat it is likewise immaterial whether movement shall be imparted to the index-finger through the medium of one of the pans, the balance-frame itself or a part of the framehnovable with said. balance-frame, though we prefer the construction illustrated and described. By loosening the clamping-screw 10 the scale-plate can be turned to face in the direction most convenient to the operator and then clamped in such position by the proper manipulation of the clamping-screw, it being understood, of course, that the scale-plate must not be turned sufliciently to withdraw the set-screws 29 out of the plane of vertical movement of part designed to contact with them.

From the above description it will be apparent that we have produced an attachment for even-balance scales possessing the features of advantage enumerated as desirable.

Having thus described the invention, what we claim as new, and desire to secure by Let ters Patent, is

1. The combination of a scale, an arm carried by said scale, a scale-plate carried by said arm and provided with indicia numbered from 0 upward in opposite directions, a lever overhanging a movable part of the scale, an indexfinger pivoted to the scaleplate, and a link pivotally connecting said lever and index-finger to transmit movement from one to the other.

2. The combination with a scale of an attachment, comprising a supporting-arm secured to a fixed point of the scale, a scaleplate supported from said arm, having indicia numbered upward in opposite directions from a O or neutral point, an index-finger pivoted to the scale-plate, a pair of levers pivoted to the scale-plate and linked to the index-finger and disposed above and below a movable part of the scale so as to be moved downward by said movable part when. the commodity upon the scale is under weight, and upward by said part when the commodity on the scale is over weight, and means to cause the index-finger to yieldingly resist such rise or fall of the balance frame and to dispose and hold it at the neutral point of the scale-plate when said balance-frame is balanced.

3. The combination with a scale, of an attachment, comprising a supporting-arm secured to a fixed point of the scale and iongitudinally adjustable thereon, a scale-plate supported from said arm, having indicia numbered upward in opposite directions IIC from a 0 or neutral point, an index-finger pivoted to the scaleplate, a pair of levers pivoted to the scale-plate and linked to the index-finger and disposed above and below a movable part of the scale so as to be moved downward by said movable part when the commodity upon the scale is under weight,

. and upward by said part when the commodity on the scale is over weight, and means to cause the index-finger to yieldingly resist such rise or fall of the balance-frame and to dispose and hold it at the neutral point of the scale-plate when said balance-frame is balanced. a

4. The combination with a scale, of an attachment, comprising a supporting-arm secured to a fixed point of the scale, a scaleplate vertically adjustable on said arm, and having indicia numbered upward in opposite directions from a 0 or neutral point, an index-finger pivoted to the scale-plate, a pair of levers pivoted to the scale-plate and linked to the index-finger and disposed above and below a movable part of the scale so as to be moved downward by said movable part when the commodity upon the scale is under weight, and upward by said part when the commodity on the scale is over weight, and means to cause the index-finger to yieldingly resist such rise or fall of the balance-frame and to dispose and hold it at the neutral point of the scale-plate when said balanceframe is balanced.

5. The combination with a scale, of an attachment, comprising a supporting-arm secured to a fixed point of the scale, a scaleplate supported from said arm having indicia numbered upward in opposite directions from a O or neutral point, an index-finger pivoted to the scale-plate, a pair of levers pivoted to the scale-plate and linked to the index-finger and disposed above and below a movable part of the scale, vertical set-screws secured in the outer ends of said levers, the upper screw to be engaged by the movable part of the scale when it rises a sufficient distance and the lower one to be engaged by said part when it descends asuitable distance, and means to cause the index-finger to yieldingly resist such rise or fall of the balanceframe, and to dispose and hold it 'at the 0 or neutral point of the scale-plate when said balance-frame is balanced.

6. The combination with a scale of an attachment, comprising a supporting-arm se-' cured to a fixed point of the scale, a scaleplate supported from said arm and having indicia numbered upward in opposite directions from a 0 or neutral point, an indexfinger pivoted to the scale-plate, a pair of levers pivoted to the scale-plate and linked to the index-finger and disposed above and below a movable part of the scale so as to be moved downward by said movable part when the commodity upon the scale is under Weight,

and upward by said part when the commodity on the scale is over weight, and a longitudinally-adjustable weight mounted upon the index-finger below its pivot and tending to hold the same in line with the 0 or neutral point of the indicia.

7. The combination of an even-balance scale, a horizontally-slotted arm, screw-bolts carried by a fixed part of the scale-frame and extending through the slot of said arm to clamp the latter at the desired point of adjustment, a vertical clamping-sleeve at the opposite end of said arm; a vertical standard 0 amped in said sleeve, a scale-plate rigid with and supported from said standard and having indicia numbered upward in opposite directions from a 0 or neutral point, an index-finger pivoted to the scale-plate, a pair of levers pivoted to the scale-plate and linked to the index-finger and disposed above and below a movable part of the scale so as to be moved downward by said movable part when the commodity upon the scale is under weight, and upward by said part when the commodity on the scale is over weight, and means to cause the index-finger to yieldingly resist such rise or fall of the balance-frame and to dispose and hold it at the neutral point of the scale-plate when said balance-frame is balanced.

8. The combination with an even-balance scale having a suitable fixed frame, a balance frame mounted thereon, frames pivotally suspended from the end of the balanceframe, pans movable vertically with said pivotally-suspended frames, a longitudinallyslotted arm secured to the scale-frame below the pivotal point of the balance-frame, a scale-plate supported from said arm having indicia numbered upward in opposite directions from a 0 or neutral point, an indexfinger pivoted to the scale-plate, a pair of le vers pivoted to the scale-plate and linked to the index-finger and disposed above and below one of the movable pans, so as to be moved downward by said pan when the commodity on the other pan is under weight, and upward by said first-named pan when the commodity in said other pan is over weight, and means to cause the index-finger to yieldingly resist such movement.

9. The combination with an even-balance scale, of a scale-plate bearing a fixed relation to the scale-frame and provided with indicia numbered from O upward in opposite directions, a pair of levers pivoted to the scaleplate and disposed above and below and within the range of movement of a movable part of the scale, an index-finger pivoted to the scale-plate and linked to said levers, and means to hold the index-finger yieldingly in a vertical position and adapted to resist the rise or fall of the movable part of the scale in its balancing movement.

10. The combination of a scale, an arm carried by said scale, a scale-piste carried by In testimony whereof We aflix our signasaid arm and provided With l'ndicia numtures in the presence of tWo Witnesses. bered from 0 upward in opposite diree- JOH-\I BARRY tions a lever u'nderlyin a movable part of i i T 5 the scale, L11iIldGXfi11g6I piVOt6d to the scale- MIOHEAL SHAUGHA ESSY plate, and a link pivotally connecting said Witnesses: lever and index-finger to transmit movement PETE HINTZ,

from one to the other. L. F. HATTEN. 

